{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1482860",
    "entityType": "User",
    "nonce": "0x51452ce7d26c18d994f0b16134c33d323d0036ba122333e99f3831fd4997583e",
    "signature": "0xe1855edc5fda1599d16bcabc99f3e4b2c5e0f16831f4dda007277b6ba2142b3e71b0005a47ff1e86d8f0c2136ad09fe8935014c736b1412d96a8d0a9861780211b",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}